Public domain Lepidoptera images by Arp (CC0)
Unsorted index to (most?) images of Lepidoptera uploaded to this site by Arp.
All carry a Creative Commons "Zero" (CC0) public domain dedication, you can use them as you please without any licensing requirements or author attribution, as I prefer usage not to be hindered by any incompatibilities between all sorts of various (not so) "free" licensing schemes(!)
Pudding4brains created this list 5 years ago